package com.syedu.day10;

/**
 * description：
 * @author Administrator
 * @date 2022/3/21 9:41
 */
public class TestShape {
    public static void main(String[] args) {
        //抽象类不能被实例化
        //Shape shape = new Shape();

        Shape s = new Rect();
        s.calcLength();
    }
}